The United States’ scorching summer of 2026 was a record-breaker, scientists from the National Oceanic and Atmospheric Administration announced Sept. 9.
Denison, IA
Right Now
65°
Cloudy
- Humidity: 98%
- Feels Like: 65°
- Heat Index: 65°
- Wind: 3 mph
- Wind Chill: 65°
- UV Index: 5 Moderate
- Sunrise: 07:03:36 AM
- Sunset: 07:26:53 PM
- Dew Point: 65°
- Visibility: 10 mi
Today
Cloudy. Slight chance of a rain shower. High around 75F. Winds NE at 5 to 10 mph.
Tonight
Cloudy skies early with scattered thunderstorms developing late. Low 66F. Winds E at 10 to 15 mph. Chance of rain 60%.
Tomorrow
Mostly cloudy. A stray shower or thunderstorm is possible. High 83F. Winds SSE at 10 to 20 mph.
Next 12 Hours
Time
Temp
Wind
Precip
11 AM
67°
4 mph
15%
11 AM
67°
Wind: N @ 4 mph
Precip: 15% Chance
Humidity: 92%
Wind Chill: 67°
Heat Index: 67°
UV Index: 2 Low
Visibility: 10 mi
Dew Point: 65°
12 PM
69°
4 mph
15%
12 PM
69°
Wind: NNE @ 4 mph
Precip: 15% Chance
Humidity: 89%
Wind Chill: 69°
Heat Index: 69°
UV Index: 2 Low
Visibility: 10 mi
Dew Point: 65°
1 PM
71°
3 mph
15%
1 PM
71°
Wind: NE @ 3 mph
Precip: 15% Chance
Humidity: 84%
Wind Chill: 71°
Heat Index: 71°
UV Index: 4 Moderate
Visibility: 10 mi
Dew Point: 65°
2 PM
74°
3 mph
15%
2 PM
74°
Wind: NE @ 3 mph
Precip: 15% Chance
Humidity: 80%
Wind Chill: 74°
Heat Index: 74°
UV Index: 4 Moderate
Visibility: 10 mi
Dew Point: 67°
3 PM
74°
4 mph
15%
3 PM
74°
Wind: NE @ 4 mph
Precip: 15% Chance
Humidity: 79%
Wind Chill: 74°
Heat Index: 74°
UV Index: 4 Moderate
Visibility: 10 mi
Dew Point: 68°
4 PM
74°
5 mph
15%
4 PM
74°
Wind: NE @ 5 mph
Precip: 15% Chance
Humidity: 80%
Wind Chill: 74°
Heat Index: 74°
UV Index: 2 Low
Visibility: 10 mi
Dew Point: 68°
5 PM
74°
6 mph
12%
5 PM
74°
Wind: ENE @ 6 mph
Precip: 12% Chance
Humidity: 82%
Wind Chill: 74°
Heat Index: 74°
UV Index: 1 Low
Visibility: 10 mi
Dew Point: 68°
6 PM
74°
7 mph
14%
6 PM
74°
Wind: ENE @ 7 mph
Precip: 14% Chance
Humidity: 84%
Wind Chill: 74°
Heat Index: 76°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 68°
7 PM
72°
6 mph
16%
7 PM
72°
Wind: NE @ 6 mph
Precip: 16% Chance
Humidity: 90%
Wind Chill: 72°
Heat Index: 74°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 69°
8 PM
70°
6 mph
18%
8 PM
70°
Wind: ENE @ 6 mph
Precip: 18% Chance
Humidity: 99%
Wind Chill: 70°
Heat Index: 73°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 70°
9 PM
69°
7 mph
16%
9 PM
69°
Wind: ENE @ 7 mph
Precip: 16% Chance
Humidity: 100%
Wind Chill: 69°
Heat Index: 71°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 69°
10 PM
68°
7 mph
15%
10 PM
68°
Wind: ENE @ 7 mph
Precip: 15% Chance
Humidity: 100%
Wind Chill: 68°
Heat Index: 71°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 68°
- KEITH WEIR Reuters
Both July and August are on track to be the warmest on record, reflecting a trend of rising temperatures across the country.
- Jeanine Santucci, Doyle Rice and Dinah Voyles Pulver USA Today
Tropical Storm Dolly has formed in the Atlantic, just days after music icon Dolly Parton's death, becoming the fourth named storm of the 2026 Atlantic hurricane season.
- Brandi D. Addison USA TODAY NETWORK
As summer heat continues across much of the country, many people are already wondering what kind of winter is ahead.
- Olivia Le Poidevin Reuters
* Heatwaves becoming more frequent, intense and longer, World Meteorological Organization says * Global warming and high-pressure systems driving Europe's heatwaves, not El Niño * Warm seas and
- Karissa Waddick USA Today
More than 20,000 people in southwest Canada and the western United States have fled their homes as wildfires, fueled by hot, dry weather, burn more than 3 million acres.
- Marta Serafinko Reuters
University of Delaware researchers are testing whether sharks equipped with sensors can serve as mobile near-real-time ocean-data observers.
- Janet Loehrke, Karina Zaiets and Ramon Padilla USA Today
Dangerously hot conditions will move west across the U.S. this week with temperatures surging to triple digits and an increased risk of wildfires and their accompanying toxic smoke.
- Niket Nishant, Ashitha Shivaprasad and Manya Saini Reuters
Combined with higher home values and reconstruction costs, coastal expansion means that even a relatively quiet hurricane season can produce severe losses.
- MELINA KHAN USA Today
A group of meteorologists is raining on "Miss Congeniality's" parade over the film's famous "perfect date" scene.
- Associated Press
A massive snowstorm hit the northeast United States, forcing millions of people to stay home amid strong winds and blizzard warnings, transportation shutdowns, and school and business closures.
- Associated Press
A big winter storm dumped sleet, freezing rain and snow across much of the U.S. on Sunday, paralyzing air and road traffic while sending temperatures plunging.
- By Alisha Ebrahimji, CNN
Dollywood patrons fled the park as floodwaters gushed throughout the walkways and spilled into the parking lot where social media images show patrons helping each other wade through knee-deep water.